– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Thu 12 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Thu 12 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 12 Mar Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 1°C on Fri morning, min -4°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sun night will be washed away by heavy rain (total 27mm) on Mon night. Freeze-thaw conditions (max 7°C on Mon night, min -2°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | | | | |  |  | |  |  | |  | |
cloudy | light snow | mod. snow | snow shwrs | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | light snow | light snow | light rain | light rain | mod. rain | mod. rain | light rain | light rain | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 3 | 6 | 1 | — | — | — | — | — | — | 1 | 4 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 4 | 5 | 6 | 1 | 4 | |
max °C | 0 | 0 | -1 | 1 | 1 | 0 | -1 | 0 | -2 | 1 | 2 | 3 | 4 | 5 | 7 | 6 | 7 | 7 |
min °C | 0 | 0 | -1 | -1 | 1 | -2 | -2 | 0 | -4 | -2 | 1 | 1 | 3 | 5 | 6 | 6 | 7 | 7 |
-5 | -4 | -1 | -1 | 0 | -4 | -4 | -3 | -4 | -2 | -1 | -1 | 1 | 3 | 4 | 3 | 5 | 5 | |
550 | 450 | 350 | 600 | 650 | 300 | 400 | 500 | 0 | 700 | 650 | 1050 | 2450 | 3150 | 2600 | 2250 | 2450 | 2450 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 600 | 600 | 700 | 750 | 750 | 2450 | 950 | 600 | 600 | 600 | 600 | 700 | 900 | 600 |
 | 7:28 | — | — | 7:26 | — | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — |
 | — | 7:07 | — | — | 7:08 | — | — | 7:10 | — | — | 7:12 | — | — | 7:14 | — | — | 7:15 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 1°C on Fri morning, min -4°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Sun night will be washed away by heavy rain (total 27mm) on Mon night. Freeze-thaw conditions (max 7°C on Mon night, min -2°C on Sun morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.